以下9类常用的过渡词，用上就可以提升你作文的档次，考前不妨多背几遍：

类别1 开头常用短语

It's said that... 据说……
As we all know that... 我们都知道……
It's well known that... 众所周知……
As/So far as I know... 据我所知……
It is clear/obvious that... ……是显而易见的

类别2 表“结构顺序”

first/firstly 第一
first of all 首先
to begin/start with 首先
in the first place 首先
second/secondly 第二
next 其次；然后
and then 于是；然后
meanwhile/at the same time 同时
finally/eventually/at last/in the end 最终

类别3 表“并列补充”

also/too/as well 也；同样；而且
both...and... ……和……
either...or... 要么……要么……
neither...nor... 既不……也不……
not only...but also... 不但……而且……
besides 除此之外
moreover 另外；此外
in addition/additionally 加之；除……之外
by the way 顺便；顺便说
what's more 更重要的是；而且；此外
what's worse 更糟的是
as well as... 也；又；和；及

类别4 表“转折对比”

but 但是；而是
however 然而；不过
while 然而
instead 反而
otherwise/or else 否则；不然
on the contrary/in contrast 相反地
in any case/at any rate 无论如何
some...while others... 一些人……另一些人……
on one hand...on the other hand... 一方面……另一方面……

类别5 表“因果关系”

because 因为
since 因为；既然
because of 因为
thanks to 多亏了
now that 既然；由于
for this reason 由于这个原因
so 因而；这样；如此
thus 因此
therefore 因此
as a result 结果；因此
so/such...that... 如此……以至于……

in order to/so that... 为了……

类别6 表“举例说明”

like 像；如同
such as 例如；像……这样
for example/instance 例如；比如

类别7 表 “特别强调”

especially 尤其；特别
particularly 特别是
certainly/surely 当然
indeed 确实；的确
obviously 显而易见
no doubt/without any doubt 毫无疑问

类别8 表“陈述事实/观点”

to be honest/to tell you the truth 说实话
actually/in fact/as a matter of fact 事实上
I think... 依我看……
in my opinion 在我看来
as far as I know 据我所知
I'm afraid... 我恐怕……
I hope... 我希望……

类别9 表“总结”

in a/one word 总而言之；简言之
in general 一般而言；总的来说
in short/brief 简而言之；总之
all in all 总的来说；大体而言
in summary 总之；概括来说
generally speaking 一般来说
above all 最重要；首先
after all 毕竟；终究
from the above 综上所述